Question 6Let $U = 2 \cdot 2004^{2005},$ $V = 2004^{2005},$ $W = 2003 \cdot 2004^{2004},$ $X = 2 \cdot 2004^{2004},$ $Y = 2004^{2004}$ and $Z = 2004^{2003}.$ Which of the following is largest?$U - V$$V - W$$W - X$$X - Y$$Y - Z$